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44829b3ddb
No bug. This commit adds support for __memcmpeq() as a new ABI for all targets. In this commit __memcmpeq() is implemented only as an alias to the corresponding targets memcmp() implementation. __memcmpeq() is added as a new symbol starting with GLIBC_2.35 and defined in string.h with comments explaining its behavior. Basic tests that it is callable and works where added in string/tester.c As discussed in the proposal "Add new ABI '__memcmpeq()' to libc" __memcmpeq() is essentially a reserved namespace for bcmp(). The means is shares the same specifications as memcmp() except the return value for non-equal byte sequences is any non-zero value. This is less strict than memcmp()'s return value specification and can be better optimized when a boolean return is all that is needed. __memcmpeq() is meant to only be called by compilers if they can prove that the return value of a memcmp() call is only used for its boolean value. All tests in string/tester.c passed. As well build succeeds on x86_64-linux-gnu target. |
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| .. | ||
| bits | ||
| fpu | ||
| nptl | ||
| sparc32 | ||
| sparc64 | ||
| sys | ||
| abort-instr.h | ||
| atomic-machine.h | ||
| backtrace.c | ||
| configure | ||
| configure.ac | ||
| cpu_relax.c | ||
| crti.S | ||
| crtn.S | ||
| dl-dtprocnum.h | ||
| dl-procinfo.c | ||
| dl-procinfo.h | ||
| dl-sysdep.h | ||
| dl-tls.h | ||
| elf-initfini.h | ||
| gccframe.h | ||
| ldsodefs.h | ||
| machine-gmon.h | ||
| Makefile | ||
| mempcpy.S | ||
| memusage.h | ||
| preconfigure | ||
| sparc-ifunc.h | ||
| sparc-mcount.S | ||
| stackinfo.h | ||
| Subdirs | ||
| sysdep.h | ||
| unwind-arch.h | ||